<template>
  <div class="nav-bar van-hairline--top">
    <ul class="nav-list">
      <router-link tag="li" class="nav-list-item active" to="home">
        <i class="nbicon nblvsefenkaicankaoxianban-1"></i>
        <span>首页</span>
      </router-link>
      <router-link tag="li" class="nav-list-item" to="category">
        <i class="nbicon nbfenlei"></i>
        <span>分类</span>
      </router-link>
      
      <!-- badge 购物车右上角会标的内容 -->
      <router-link tag="li" class="nav-list-item" to="cart">
        <van-icon name="shopping-cart-o" :badge="!count ? '' : count" />
        <span>购物车</span>
      </router-link>
      <router-link tag="li" class="nav-list-item" to="user">
        <i class="nbicon nblvsefenkaicankaoxianban-"></i>
        <span>我的</span>
      </router-link>
    </ul>
  </div>
</template>

<script>
import { computed, onMounted } from "vue";
import { useRoute } from 'vue-router';
import {useStore} from 'vuex'
import { getLocal } from '../../common/js/utils';
export default {
  setup() {
      const route = useRoute()
      const store = useStore()
      onMounted(() => {
          const token = getLocal('TOKEN')
          const path = route.path
          console.log(count,'count')
          if (token && !['/home', '/category'].includes(path)){
              store.dispatch('updateCart')
          }
      })
      const count = computed(() => {
          return store.state.cartCount
      })
      return {
          count
      }
  },
};
</script>

<style lang='less' scoped>
@import "../../common/style/mixin.less";
.nav-bar {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 5px 0;
  z-index: 1000;
  background: #fff;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  .nav-list {
    width: 100%;
    .fj();
    flex-direction: row;
    padding: 0;
    .nav-list-item {
      display: flex;
      flex: 1;
      flex-direction: column;
      text-align: center;
      color: #666;
      &.router-link-active {
        color: @primary;
      }
      i {
        text-align: center;
        font-size: 22px;
      }
      span {
        font-size: 12px;
      }
      .van-icon-shopping-cart-o {
        margin: 0 auto;
        margin-bottom: 2px;
      }
    }
  }
}
</style>